diff --git a/contracts/.gas-snapshot b/contracts/.gas-snapshot
new file mode 100644
index 00000000..64fb4de1
--- /dev/null
+++ b/contracts/.gas-snapshot
@@ -0,0 +1,27 @@
+·------------------------------------------------------|---------------------------|-------------|-----------------------------·
+|                 Solc version: 0.8.18                 ·  Optimizer enabled: true  ·  Runs: 200  ·  Block limit: 30000000 gas  │
+·······················································|···························|·············|······························
+|  Methods                                                                                                                     │
+·····················|·································|·············|·············|·············|···············|··············
+|  Contract          ·  Method                         ·  Min        ·  Max        ·  Avg        ·  # calls      ·  usd (avg)  │
+·····················|·································|·············|·············|·············|···············|··············
+|  GrandSumVerifier  ·  verifyProof                    ·          -  ·          -  ·     271155  ·            2  ·          -  │
+·····················|·································|·············|·············|·············|···············|··············
+|  Summa             ·  submitCommitment               ·          -  ·          -  ·    1068958  ·            5  ·          -  │
+·····················|·································|·············|·············|·············|···············|··············
+|  Summa             ·  submitProofOfAddressOwnership  ·          -  ·          -  ·     700479  ·            3  ·          -  │
+·····················|·································|·············|·············|·············|···············|··············
+|  Deployments                                         ·                                         ·  % of limit   ·             │
+·······················································|·············|·············|·············|···············|··············
+|  GrandSumVerifier                                    ·          -  ·          -  ·     277127  ·        0.9 %  ·          -  │
+·······················································|·············|·············|·············|···············|··············
+|  InclusionVerifier                                   ·          -  ·          -  ·     284887  ·        0.9 %  ·          -  │
+·······················································|·············|·············|·············|···············|··············
+|  src/DummyVerifyingKey.sol:Halo2VerifyingKey         ·          -  ·          -  ·     266321  ·        0.9 %  ·          -  │
+·······················································|·············|·············|·············|···············|··············
+|  src/VerifyingKey.sol:Halo2VerifyingKey              ·          -  ·          -  ·     350335  ·        1.2 %  ·          -  │
+·······················································|·············|·············|·············|···············|··············
+|  Summa                                               ·          -  ·          -  ·    1915414  ·        6.4 %  ·          -  │
+·······················································|·············|·············|·············|···············|··············
+|  Verifier                                            ·          -  ·          -  ·    1907494  ·        6.4 %  ·          -  │
+·------------------------------------------------------|-------------|-------------|-------------|---------------|-------------·
\ No newline at end of file
diff --git a/contracts/hardhat.config.ts b/contracts/hardhat.config.ts
index cea08afb..4c84ac97 100644
--- a/contracts/hardhat.config.ts
+++ b/contracts/hardhat.config.ts
@@ -21,6 +21,9 @@ module.exports = {
   gasReporter: {
     currency: "USD",
     gasPrice: 30,
+    enabled: process.env.REPORT_GAS ? true : false,
+    outputFile: ".gas-snapshot",
+    noColors: true
   },
   solidity: {
     compilers: [
diff --git a/contracts/src/Summa.sol b/contracts/src/Summa.sol
index 66904f83..e2fed642 100644
--- a/contracts/src/Summa.sol
+++ b/contracts/src/Summa.sol
@@ -272,13 +272,7 @@ contract Summa is Ownable {
 
         bytes memory snarkProof = commitments[timestamp];
     
-        bytes memory combinedProofs = new bytes(snarkProof.length + inclusionProof.length);
-        for (uint256 i = 0; i < inclusionProof.length; i++) {
-            combinedProofs[i] = inclusionProof[i];
-        }
-        for (uint256 i = 0; i < snarkProof.length; i++) {
-            combinedProofs[i + inclusionProof.length] = snarkProof[i];
-        }
+        bytes memory combinedProofs = abi.encodePacked(inclusionProof, snarkProof);
 
         return inclusionVerifier.verifyProof(verifyingKey, combinedProofs, challenges, values);
     }